1713681 has 6 divisors (see below), whose sum is σ = 2475330. Its totient is φ = 1142448.

The previous prime is 1713671. The next prime is 1713683. The reversal of 1713681 is 1863171.

It can be written as a sum of positive squares in only one way, i.e., 1648656 + 65025 = 1284^2 + 255^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1713681 is a prime.

It is a super-2 number, since 2×1713681² = 5873405139522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1713683) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 95196 + ... + 95213.

It is an arithmetic number, because the mean of its divisors is an integer number (412555).

2^1713681 is an apocalyptic number.

It is an amenable number.

1713681 is a deficient number, since it is larger than the sum of its proper divisors (761649).

1713681 is a wasteful number, since it uses less digits than its factorization.

1713681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190415 (or 190412 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 1713681 is about 1309.0763919650. The cubic root of 1713681 is about 119.6676218899.

The spelling of 1713681 in words is "one million, seven hundred thirteen thousand, six hundred eighty-one".